Reflection and hybrid reflection filters

US9843302B2 · kind B2 · utility

Assignee

• University of Southern California · US

Inventors

• Behnam Analui · Irvine, US
• Ankush Goel · San Jose, US
• Hossein Hashemi · Mont-Laurier, CA

Key dates

• Filing date: Feb 13, 2015
• Grant date: Dec 12, 2017
• Expiry date: Feb 13, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01P1/20
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A two-port tunable or reconfigurable network having a filter transfer function may include: a network input port; a network output port; a hybrid coupler having a hybrid input port, a hybrid isolated port, a hybrid through port, and a hybrid coupled port; a first internal two-port network connected between the network input port and the hybrid input port; a second internal two-port network connected between the network output port and the hybrid isolated port; and a third internal two-port network connected between the hybrid through port and the hybrid coupled port. At least one of the first internal two-port network, the second internal two-port network, the third internal two-port network, and the hybrid coupler may be tunable or reconfigurable in response to an electrical signal or a user-operated control in a way that tunes or reconfigures the filter transfer function of the two-port tunable or reconfigurable network.A two-port tunable or reconfigurable network having a filter transfer function may include: a network input port; a network output port; a hybrid coupler having a hybrid input port, a hybrid isolated port, a hybrid through port, and a hybrid coupled port; a first …